121430453311 has 4 divisors (see below), whose sum is σ = 121436484624. Its totient is φ = 121424422000.

The previous prime is 121430453281. The next prime is 121430453357. The reversal of 121430453311 is 113354034121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121430453311 - 2⁵ = 121430453279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121430453311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121430453611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2985355 + ... + 3025756.

It is an arithmetic number, because the mean of its divisors is an integer number (30359121156).

Almost surely, 2^121430453311 is an apocalyptic number.

121430453311 is a deficient number, since it is larger than the sum of its proper divisors (6031313).

121430453311 is an equidigital number, since it uses as much as digits as its factorization.

121430453311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6031312.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 121430453311 its reverse (113354034121), we get a palindrome (234784487432).

The spelling of 121430453311 in words is "one hundred twenty-one billion, four hundred thirty million, four hundred fifty-three thousand, three hundred eleven".